1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2005-2018. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
%% You may obtain a copy of the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% %CopyrightEnd%
%%
-module(apply_SUITE).
-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
init_per_group/2,end_per_group/2,mfa/1,fun_apply/1]).
-export([foo/0,bar/1,baz/2]).
-include_lib("common_test/include/ct.hrl").
suite() -> [{ct_hooks,[ts_install_cth]}].
all() ->
[mfa, fun_apply].
groups() ->
[].
init_per_suite(Config) ->
test_lib:recompile(?MODULE),
Config.
end_per_suite(_Config) ->
ok.
init_per_group(_GroupName, Config) ->
Config.
end_per_group(_GroupName, Config) ->
Config.
-define(APPLY0(M, F), (fun(Res) -> Res = M:F() end)(apply(M, F, []))).
-define(APPLY1(M, F, A1), (fun(Res) -> Res = M:F(A1) end)(apply(M, F, [A1]))).
-define(APPLY2(M, F, A1, A2), (fun(Res) -> Res = M:F(A1, A2) end)(apply(M, F, [A1,A2]))).
mfa(Config) when is_list(Config) ->
ok = ?APPLY0(?MODULE, foo),
{[a,b]} = ?APPLY1(?MODULE, bar, [a,b]),
{39,{a}} = ?APPLY2(?MODULE, baz, 39, {a}),
Mod = id(?MODULE),
ok = ?APPLY0(Mod, foo),
{[a,b]} = ?APPLY1(Mod, bar, [a,b]),
{39,{a}} = ?APPLY2(Mod, baz, 39, {a}),
ok = ?APPLY0(?MODULE, (id(foo))),
{[a,b]} = ?APPLY1(?MODULE, (id(bar)), [a,b]),
{39,{a}} = ?APPLY2(?MODULE, (id(baz)), 39, {a}),
ok = ?APPLY0(Mod, (id(foo))),
{[a,b]} = ?APPLY1(Mod, (id(bar)), [a,b]),
{39,{a}} = ?APPLY2(Mod, (id(baz)), 39, {a}),
{'EXIT',_} = (catch ?APPLY2(Mod, (id(bazzzzzz)), a, b)),
{'EXIT',_} = (catch ?APPLY2({}, baz, a, b)),
{'EXIT',_} = (catch ?APPLY2(?MODULE, [], a, b)),
{'EXIT',_} = (catch bad_literal_call(1)),
ok = apply(Mod, foo, id([])),
{[a,b|c]} = apply(Mod, bar, id([[a,b|c]])),
{[xx],{a}} = apply(?MODULE, baz, id([[xx],{a}])),
Erlang = id(erlang),
Self = self(),
Self = ?APPLY0(Erlang, self),
42.0 = ?APPLY1(Erlang, abs, -42.0),
b = ?APPLY2(Erlang, element, 2, {a,b,c}),
true = ?APPLY1(Erlang, is_function, fun erlang:list_to_binary/1),
true = ?APPLY1(Erlang, is_function, fun() -> ok end),
false = ?APPLY1(Erlang, is_function, blurf),
true = ?APPLY2(Erlang, is_function, fun erlang:list_to_binary/1, 1),
true = ?APPLY2(Erlang, is_function, fun() -> ok end, 0),
false = ?APPLY2(Erlang, is_function, blurf, 0),
apply(Mod, foo, []).
%% The single call to this function with a literal argument caused type
%% optimization to swap out the 'mod' field of a #b_remote{}, which was
%% mishandled during code generation as it assumed that the module would always
%% be an atom.
bad_literal_call(I) ->
I:foo().
foo() ->
ok.
bar(A) ->
{A}.
baz(A, B) ->
{A,B}.
-define(FUNAPPLY0(F), (fun(Res) -> Res = F() end)(apply(F, []))).
-define(FUNAPPLY1(F, A1), (fun(Res) -> Res = F(A1) end)(apply(F, [A1]))).
-define(FUNAPPLY2(F, A1, A2), (fun(Res) -> Res = F(A1, A2) end)(apply(F, [A1,A2]))).
fun_apply(Config) when is_list(Config) ->
Self = self(),
Self = ?FUNAPPLY0(fun() -> self() end),
Self = ?FUNAPPLY0((id(fun() -> self() end))),
ok = ?FUNAPPLY0(fun ?MODULE:foo/0),
ok = ?FUNAPPLY0((id(fun ?MODULE:foo/0))),
-42 = ?FUNAPPLY1(fun(A) -> -A end, 42),
[x,yy] = ?FUNAPPLY1((id(fun(T) -> [x|T] end)), [yy]),
{[a|b]} = ?FUNAPPLY1(fun ?MODULE:bar/1, [a|b]),
{[a|b]} = ?FUNAPPLY1((id(fun ?MODULE:bar/1)), [a|b]),
{a,b} = ?FUNAPPLY2(fun(A, B) -> {A,B} end, a, b),
{a,[b]} = ?FUNAPPLY2((id(fun(A, B) -> {A,B} end)), a, [b]),
{42,{a}} = ?FUNAPPLY2((id(fun ?MODULE:baz/2)), 42, {a}),
ok.
id(I) -> I.
|
